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Electrospun polyamide/graphen oxide nanocomposite as a novel fiber coating

Abstract

In this study, a novel solid phase microextraction fiber coating based on polyamide-graphene oxide nanocomposite was prepared using electrospinning technique on stainless steel wire as a robust substrate. Scanning electron microscopy images showed high porosity of the synthesized polyamide-graphene oxide nanocomposite and the diameter of nanofibers in the range of 100-250 nm. The method feasibility was studied using extraction of polycyclic aromatic hydrocarbons as model compounds from water samples. Important factors of the electrospinning procedure and extraction processes such as polymer concentration, amount of graphene oxide nanoparticles, power voltage, electrospining time, extraction temperature and time, ionic strength and desorption condition were studied and optimized. The developed method is fast and sensitive, providing sub and low ppt detection limits, limit of detection of 0.7–1 ng L-1 and limit of quantification of 2- 5 ng L−1 with equilibrium time of 15 minutes. Wide linearity in the range of 5-2000 ng L-1 with R > 0.9995 was also obtained. Repeatability of the method was accessed at 100 ng L−1 and relative standard deviation of 5–10% was achieved. Finally, the developed method was applied to real water samples and the relative recoveries were found to be in the range of 89–101%, showing no matrix effect.

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Publication details

The article was received on 22 Feb 2018, accepted on 31 Mar 2018 and first published on 05 Apr 2018


Article type: Paper
DOI: 10.1039/C8AY00404H
Citation: Anal. Methods, 2018, Accepted Manuscript
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    Electrospun polyamide/graphen oxide nanocomposite as a novel fiber coating

    S. Ehteshami, A. Feiabakhsh, A. M. Sarrafi, H. A. Panahi and A. Roostaie, Anal. Methods, 2018, Accepted Manuscript , DOI: 10.1039/C8AY00404H

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